V2EX solar year

Solar Year

释义 Definition

solar year太阳年;指地球相对于太阳的一年周期,通常以季节循环为基准来计量。日常语境中多指与季节相关的回归年(tropical year),长度约 365.2422 天(因此需要闰年调整)。在某些天文学语境中也可能与其他“年”(如恒星年)对比使用。

发音 Pronunciation

/solr jr/

例句 Examples

A solar year is about 365 days.
太阳年大约是365天。

Because a solar year is not exactly 365 days, our calendar adds a leap day every four years to keep the seasons aligned.
由于太阳年并不正好是365天,我们的历法大约每四年增加一天(闰日),以让季节与日期保持一致。

词源 Etymology

solar 来自拉丁语 sol(“太阳”);year 来自古英语 ēar(“年”)。两者组合成 solar year,字面意思就是“与太阳相关的年”,用于强调这种“年”的定义与地球太阳的关系、季节更替有关,而不是与遥远恒星背景的相对位置有关。

相关词 Related Words

文学与作品 Literary Works

  • Carl Sagan《Cosmos》(《宇宙》):科普叙述中常用“solar year”解释历法与季节的关系。
  • Stephen Hawking《A Brief History of Time》(《时间简史》):讨论时间与天体运动时会涉及“year”等概念,并常以太阳年作直观参照。
  • Newton《Philosophi Naturalis Principia Mathematica》(《自然哲学的数学原理》):在与天体运动和周期相关的讨论中可见类似“solar year”的用语环境。
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